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Founded by passionate advocates of learning and innovation, Learni set out to make professional training accessible to everyone, everywhere in the world. Our team works in the largest cities such as Paris, Lyon, Marseille, and internationally, to support talents and organizations in their skills development.
Which format do you prefer?
30 free minutes with a training advisor — no commitment.
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Professional Training training in Memphis in October 2026 with Learni. Certified, expert trainers, eligible for employer funding. Free quote.
Master competitive analysis skills essential for product teams with this step-by-step guide, including tools, frameworks, and 2026 trends like AI-driven insights.
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Don't let this gap widen
Sans maîtrise des certificats SSL/TLS via Let’s Encrypt, 75 % des sites web restent vulnérables aux attaques par interception de données, exposant clients et informations sensibles.
Une seule brèche de sécurité coûte en moyenne 4,5 millions d’euros à une entreprise, avec une perte de 30 % du trafic organique due aux pénalités SEO de Google.
Chaque mois sans automatisation des renouvellements gaspille 10 heures par site en gestion manuelle, menaçant la réputation et la survie business.
Les administrateurs et responsables sécurité risquent alors des sanctions internes ou des licenciements pour négligence critique.
The Maîtriser Let’s Encrypt : Sécuriser vos sites web avec des certificats SSL/TLS gratuits training is delivered in-person or remotely (blended-learning, e-learning, virtual classroom, remote in-person). At Learni, a Qualiopi-certified training organization, each program is designed to maximize skills acquisition, regardless of the training mode chosen.
The trainer alternates between demonstrative, interrogative, and active methods (through practical exercises and/or real-world scenarios). This pedagogical approach ensures concrete and directly applicable learning in the workplace.
To ensure the quality of the Maîtriser Let’s Encrypt : Sécuriser vos sites web avec des certificats SSL/TLS gratuits training, Learni provides the following teaching resources:
For in-house training at a location external to Learni, the client ensures and commits to having all necessary teaching materials (IT equipment, internet connection...) for the proper conduct of the training action in accordance with the prerequisites indicated in the communicated training program.
The assessment of skills acquired during the Maîtriser Let’s Encrypt : Sécuriser vos sites web avec des certificats SSL/TLS gratuits training is carried out through:
Learni is committed to the accessibility of its professional training programs. All our training programs are accessible to people with disabilities. Our teams are available to adapt teaching methods to your specific needs. Do not hesitate to contact us for any accommodation request.
Learni training programs are available for inter-company and intra-company settings, both in-person and remote. Registration is possible up to 48 business hours before the start of training. Our programs are eligible for OPCO, Pôle emploi, and FNE-Formation funding. Contact us to discuss your training project and funding possibilities.
Présentation des concepts SSL/TLS, enjeux de la sécurité web, historique des autorités de certification, découverte de Let’s Encrypt, compréhension de l’ACME protocol, avantages et limites de Let’s Encrypt.
Installation du client Certbot, configuration sur Apache, Nginx et IIS, création et installation de certificats, configuration des virtual hosts et vérification de la sécurisation HTTPS.
Automatisation du renouvellement des certificats (cron, tâches planifiées), gestion multi-domaines et wildcard, bonnes pratiques de sécurité, analyse des erreurs fréquentes, dépannage et gestion des logs, intégration à des environnements d’hébergement ou plateformes cloud.
Target audience
Administrateurs systèmes, développeurs web et responsables sécurité souhaitant déployer des certificats SSL/TLS gratuits sur leurs services web.
Prerequisites
Connaissances de base en administration système (Linux ou Windows) et gestion de serveurs web (Apache, Nginx ou IIS).
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